Browse Prior Art Database

Autostereoscopic 3-D Image Display Device

IP.com Disclosure Number: IPCOM000114325D
Original Publication Date: 1994-Dec-01
Included in the Prior Art Database: 2005-Mar-28
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Miyazawa, A: AUTHOR

Abstract

Autostereoscopic displays that use a lenticular array generate a three-dimensional representation of a scene, which can be viewed by one or more observers without special viewing devices such as spectacles. Such displays operate by presenting different views of the displayed scene when viewed from different angles. By moving horizontally, the viewer can see continuously changing views of the scene, because several different stereo pairs are recorded in strips and registered correctly behind the lenticular array. The number of views is determined by how many pixels of the display can be placed within the pitch of the lenslet. In general, the more views there are, the stronger the sense of depth. However, in the above method it is necessary to increase the resolution of the display in order to increase the number of views.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 87% of the total text.

Autostereoscopic 3-D Image Display Device

      Autostereoscopic displays that use a lenticular array generate
a three-dimensional representation of a scene, which can be viewed by
one or more observers without special viewing devices such as
spectacles.  Such displays operate by presenting different views of
the displayed scene when viewed from different angles.  By moving
horizontally, the viewer can see continuously changing views of the
scene, because several different stereo pairs are recorded in strips
and registered correctly behind the lenticular array.  The number of
views is determined by how many pixels of the display can be placed
within the pitch of the lenslet.  In general, the more views there
are, the stronger the sense of depth.  However, in the above method
it is necessary to increase the resolution of the display in order to
increase the number of views.  Obviously, there are limitations on
the extent to which the display resolution can be increased.

      Fig. 1 shows the configuration of an autostereoscopic display
embodying a new idea.  An array of slits is located between the
lenticular array and the display, and is driven sideways by an
actuator.  Let us consider a slit moving over a single pixel of the
display.  It divides the pitch of the lenslet into the number of
views that can be seen within the duration of an afterimage, as shown
in Fig. 2.  An autostereoscopic view can be realized by displaying an
appropriately selected sequ...